Administrator Guide

The maximum number of lossless queues supported on the switch is two.
A PFC peer must support the configured priority traffic (as DCBX detects) to apply PFC.
show dcb
Display the data center bridging status, the number of PFC-enabled ports, and the number of PFC-enabled queues.
C9000 Series
Syntax
show dcb [stack-unit unit-number] [port-set port-set-number]
Parameters
unit-number Enter the DCB unit number.
port-set-number Enter the port-set number.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.7(0.1) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information Specify a stack-unit number on the Master switch in a stack.
Example
Dell# show dcb
stack-unit 1 port-set 0
DCB Status : Enabled
PFC Port Count : 56 (current), 56 (configured)
PFC Queue Count : 2 (current), 2 (configured)
show hardware pfc-nodrop-priority
View the packets drop count corresponding to the priority.
Syntax
show hardware pfc-nodrop-priority l2-dlf drops stack-unit stack-unit-number
port-set port-pipe
Parameters
stack-unit stack-
unit-number
Enter the keywords stack-unit and the stack unit number. The range is from 0 to 5.
port-set port-pipe Enter the keywords port-set and port-pipe number. The port-pipe number is 0.
Command Modes
EXEC
EXEC Privilege
Data Center Bridging (DCB) 511